Search found 1136 matches

by snacksthecat
02 Jan 2020, 20:57
Forum: Keyboards
Topic: Telecomet terminal
Replies: 3
Views: 291

Re: Telecomet terminal

I have this same keyboard. Probably from the same seller even. I’ll look back at the pictures I took to jog my memory and share what I found out. Off the top of my head: #1 the keycaps did not take well to retrobrite. For instance, the apparent fading in color on the yellow caps didn’t even out much...
by snacksthecat
01 Jan 2020, 21:42
Forum: Workshop
Topic: Keyboard Photogrammetry
Replies: 33
Views: 1339

Re: Keyboard Photogrammetry

The small object I referred to above was a Micro Switch SD keyswitch. Compared to the XMIT keycap (which is roughly the same size), this one didn't present nearly as many problems scanning. That being said, I was primed with the knowledge I've gained with all the failed attempts to scan a keycap, so...
by snacksthecat
01 Jan 2020, 03:58
Forum: Gallery
Topic: How do you make a decent typing video?
Replies: 2
Views: 210

How do you make a decent typing video?

I'm not sure why this popped into my head today. I've never been into typing videos because I'm not a very nice typist. Not nice in the sense that my typing technique is very utilitarian. I rely on a few fundamentals and the rest is just messy improv, rather than nice smooth muscle memory. Anyways, ...
by snacksthecat
31 Dec 2019, 21:32
Forum: Workshop
Topic: Keyboard Photogrammetry
Replies: 33
Views: 1339

Re: Keyboard Photogrammetry

Slightly upgraded setup. Let's get ready to spend the day taking pictures of something small that might not even scan!

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by snacksthecat
29 Dec 2019, 20:45
Forum: Deskthority talk
Topic: Deskthority header images v2
Replies: 115
Views: 12899

Re: Deskthority header images v2

"Forcefields activated"

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by snacksthecat
28 Dec 2019, 22:06
Forum: Gallery
Topic: Texas Instruments 911 Keyboard
Replies: 4
Views: 412

Re: Texas Instruments 911 Keyboard

Some more pictures of caps https://i.imgur.com/mcQMfhJ.jpg https://i.imgur.com/2tr6yhn.jpg https://i.imgur.com/xxbuq3N.jpg https://i.imgur.com/dpGTUCC.jpg https://i.imgur.com/rDim5je.jpg https://i.imgur.com/fRz9hNW.jpg https://i.imgur.com/2zdZ5Tq.jpg https://i.imgur.com/f13C9pA.jpg https://i.imgur.c...
by snacksthecat
27 Dec 2019, 23:49
Forum: Gallery
Topic: Texas Instruments 911 Keyboard
Replies: 4
Views: 412

Re: Texas Instruments 911 Keyboard

John Doe wrote:
27 Dec 2019, 06:32
Cool, where u got it?
Overpaid on ebay for it :lol:
by snacksthecat
27 Dec 2019, 23:47
Forum: Gallery
Topic: SPRiT 125cN Alps Replacement Springs
Replies: 3
Views: 286

Re: SPRiT 125cN Alps Replacement Springs

Nope! I'd at one point bought 11 different weightings of the SPRiT alps springs. I made these little 33 key switch testers. It was the 11 different SPRiT springs inside the three different types of Matias switches. It was actually a pretty cool idea. Unfortunately I ordered the plexiglass too thin a...
by snacksthecat
27 Dec 2019, 05:47
Forum: Gallery
Topic: Texas Instruments 911 Keyboard
Replies: 4
Views: 412

Texas Instruments 911 Keyboard

I took all these pictures on the floor with no tripod and two flashlights. Most turned out crappy but there's a few cool ones in there for sure. https://i.imgur.com/g6TgCFA.jpg https://i.imgur.com/vmKsgao.jpg https://i.imgur.com/bGKy4Sw.jpg https://i.imgur.com/ALA44WC.jpg https://i.imgur.com/PmDmMIm...
by snacksthecat
27 Dec 2019, 01:18
Forum: Gallery
Topic: Post your keyboard/keycaps!
Replies: 2830
Views: 248944

Re: Post your keyboard/keycaps!

Merry Christmas (one day late)!!!

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by snacksthecat
24 Dec 2019, 00:54
Forum: Workshop
Topic: Alps64 Mini
Replies: 5
Views: 1034

Re: Alps64 Mini

Hi there, I wasn't aware of this keyboard pcb. For your case there is another option, my own design of 14,5 unit case : https://www.thingiverse.com/thing:4013453 Also there is the little brother ASK10 keypad : https://www.thingiverse.com/thing:4052241 You can probably make some little variation to ...
by snacksthecat
22 Dec 2019, 03:19
Forum: Gallery
Topic: Univac 4118511-01 keyboard from 1968
Replies: 4
Views: 334

Re: Univac 4118511-01 keyboard from 1968

Really nice photos! I've never imagined switches so tall before. And those red wires look super delicate. Glad it's in such great condition especially considering it's over 50 years old!
by snacksthecat
21 Dec 2019, 21:46
Forum: Workshop
Topic: Foam & Foil Mini Monster - Phase 2: Ideation
Replies: 22
Views: 703

Re: Foam & Foil Mini Monster - Phase 2: Ideation

Finally after much testing, I've arrived at what I believe to be the optimal "sandwich" to make this idea work. First of all, I've taped off all the pads on the PCB with the 1mil kapton tape. https://i.imgur.com/R4lo2X0.jpg The topre spring will sit on top of the pad, insulated by the tape. The swit...
by snacksthecat
20 Dec 2019, 20:12
Forum: News
Topic: Stuff you just bought
Replies: 1811
Views: 120195

Re: Stuff you just bought

Image

I've never owned a "super" macro lens. This one is completely manual (i.e. you set the aperture on the lens by hand) but much cheaper than the alternatives I looked at. Excited to inundate DT with lots of closeup keyboard pics.
by snacksthecat
17 Dec 2019, 02:12
Forum: Workshop
Topic: Keyboard Photogrammetry
Replies: 33
Views: 1339

Re: Keyboard Photogrammetry

I noticed some last minute weirdness going on with that Fortune/Digitran keyboard I mentioned before so I decided I'd like to re-run the photos through the program from scratch. If I'm remembering right, I did the old "align & merge chunks" rigmarole which I think can explain what I'm seeing. Kind o...
by snacksthecat
16 Dec 2019, 04:08
Forum: Workshop
Topic: Foam & Foil Mini Monster - Phase 2: Ideation
Replies: 22
Views: 703

Re: Foam & Foil Mini Monster - Phase 2: Ideation

If you need to get additional capacitance, you might be able to put a layer of foil between the thin foam and the spring, that way as the spring flattens, it not only makes more contact with the sensor but also more contact with the foil, allowing for a higher change in capacitance. Hmmm, I'll try ...
by snacksthecat
15 Dec 2019, 23:17
Forum: Workshop
Topic: Foam & Foil Mini Monster - Phase 2: Ideation
Replies: 22
Views: 703

Re: Foam & Foil Mini Monster - Phase 2: Ideation

In this design we're dealing with a very low capacitance to begin with, because of the physical dimensions and materials. Changing one of the plates from a solid disc to a spiral drops it even more. And using a tape with an unknown dielectic constant is probably dropping it even further. A random f...
by snacksthecat
15 Dec 2019, 20:48
Forum: Workshop
Topic: Foam & Foil Mini Monster - Phase 2: Ideation
Replies: 22
Views: 703

Re: Foam & Foil Mini Monster - Phase 2: Ideation

Your finger could have been the problem. Don't necessarily throw out your previous ideas! Test them with the tape layer in place, instead. Or the good ones at least. I liked the look of the Topre spring inside the Keytronic switch housing concept . Yeah, I'm probably being overly hasty in deciding ...
by snacksthecat
15 Dec 2019, 19:27
Forum: Workshop
Topic: Foam & Foil Mini Monster - Phase 2: Ideation
Replies: 22
Views: 703

Re: Foam & Foil Mini Monster - Phase 2: Ideation

Scratch what I said in my last few posts; it actually does work fine through the tape. The problem is my switch design and how I was testing. I looked at it again today with fresh eyes and tried pushing the spring down with a sharpie marker. When I did this, I get a perfect keypress registering in f...
by snacksthecat
15 Dec 2019, 18:43
Forum: Workshop
Topic: Foam & Foil Mini Monster - Phase 2: Ideation
Replies: 22
Views: 703

Re: Foam & Foil Mini Monster - Phase 2: Ideation

Are those pads naked conductors? Yep, the pads are naked. I put the tape on two of them to run tests on. I guess the question now is what type of material will work for creating the insulating layer? The polyimide tape I bought is 2 mil. Maybe I need something thinner that that even. I see 1 mil ta...
by snacksthecat
15 Dec 2019, 06:02
Forum: Workshop
Topic: Foam & Foil Mini Monster - Phase 2: Ideation
Replies: 22
Views: 703

Re: Foam & Foil Mini Monster - Phase 2: Ideation

To get a change in capacitance the metal (foil...) needs to move in relation to the pads. If the base of the spring is already against the pads (through the tape) you're probably not getting a capacitance change big enough to register as a keypress. Just thinking out loud... Well, Topre already wor...
by snacksthecat
15 Dec 2019, 03:08
Forum: Workshop
Topic: Foam & Foil Mini Monster - Phase 2: Ideation
Replies: 22
Views: 703

Re: Foam & Foil Mini Monster - Phase 2: Ideation

I got up and running with a basic config in flight controller. Enough to where I can test the keys to see if they register. I used one normal switch as a "control". After I identified a few of the PCB pads and where they registered in the matrix, I tried out various configurations of the topre sprin...
by snacksthecat
15 Dec 2019, 02:17
Forum: Workshop
Topic: Another KeyTronic F&F with CommonSense
Replies: 9
Views: 512

Re: Another KeyTronic F&F with CommonSense

Curious as to what values you set in the hardware config section of flight controller. Would you mind sharing if you have a chance? It would be great if we could figure out a baseline for F&F boards to remove the guesswork for folks.
by snacksthecat
15 Dec 2019, 01:22
Forum: Workshop
Topic: Foam & Foil Mini Monster - Phase 2: Ideation
Replies: 22
Views: 703

Re: Foam & Foil Mini Monster - Phase 2: Ideation

Well today I pulled the trigger and removed all the components off the board. I know I'd said I wanted to poke around with a logic analyzer a bit first, but I lost interest in that pretty quickly. Just finished the wiring/soldering for the commonsense controller. I scrubbed it down with some 91% iso...
by snacksthecat
14 Dec 2019, 06:59
Forum: Workshop
Topic: Foam & Foil Mini Monster - Phase 2: Ideation
Replies: 22
Views: 703

Re: Foam & Foil Mini Monster - Phase 2: Ideation

This looks pretty cool and promising

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by snacksthecat
14 Dec 2019, 06:16
Forum: Workshop
Topic: Foam & Foil Mini Monster - Phase 2: Ideation
Replies: 22
Views: 703

Re: Foam & Foil Mini Monster - Phase 2: Ideation

Dang, just typed this up, clicked to post, and I wasn't logged in so it wiped everything out. Anyways, I've arrived at the conclusion that you most likely can't get away from the foam like I had hoped. Well maybe you can, but it's probably not a good idea. The reason being because you need something...
by snacksthecat
14 Dec 2019, 01:55
Forum: Workshop
Topic: Foam & Foil Mini Monster - Phase 2: Ideation
Replies: 22
Views: 703

Re: Foam & Foil Mini Monster - Phase 1: Autopsy

I will need new foam for the board. I'm not exactly sure what to use if I DIY it. For past projects I bought pre-cut foam disks off ebay, but they were very pricey. This time I'd rather just cut my own. I presume I can use leather punches for this. I really love the old tall stem KeyTronic F&F boar...
by snacksthecat
13 Dec 2019, 17:50
Forum: Off-topic
Topic: The 2019 Keyboard Meme Contest
Replies: 73
Views: 14724

Re: The 2019 Keyboard Meme Contest

Lately reading DT feels like...

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by snacksthecat
11 Dec 2019, 17:15
Forum: Workshop
Topic: Keyboard Photogrammetry
Replies: 33
Views: 1339

Re: Keyboard Photogrammetry

I think I'm going to attempt this scan once more and this time suspend the keycap from a string. I'll definitely pull back and use a different lens. I think I've gotten a handle on controlling the lights now that I've worked with it so much. If I position the soft boxes at a good distance away and a...

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